Which pvc fittings for vents?

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Thekid1

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I am piping out a vent setup for 2 basement baths. I see that home depot sells long radius, regular, and short radius fittings.

1) Which of the 3 should be used?
2) When using tees for the vents, should I be using combo fittings, sanitary tees, or just regular tees?
 

wwhitney

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For vents you can use anything. That is, as long as you don't create a mid-vent low point that would trap condensation; condensation always needs to be able to drip back towards a drain.

Cheapest and simplest will likely be to use just regular quarter bends and sanitary tees, but you could use the other options if they provide an advantage. For example a vent 90 has a really tight radius, which occasionally is useful.

Cheers, Wayne
 

Thekid1

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For vents you can use anything. That is, as long as you don't create a mid-vent low point that would trap condensation; condensation always needs to be able to drip back towards a drain.

Cheapest and simplest will likely be to use just regular quarter bends and sanitary tees, but you could use the other options if they provide an advantage. For example a vent 90 has a really tight radius, which occasionally is useful.

Cheers, Wayne
Thank you. I was thinking to use long radius elbows and combo tees. Am I gaining anything by doing this or am I just wasting money? I was thinking it would be less restriction when pulling/replacing air?
 
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